The MC-2 is equipped with many lights that are there to help you set your camera up, and verify that everything is running smoothly. There are several lights, including the Status light, SD card, Battery level, Cellular strength, and the Account light. The lights have 3 different color codes, which are red, yellow, and green. If you follow the quick start guide on the inner panel of the MC-2, you can see the legend for the color codes and their meanings.